Sterilizer unit casing



FIG. 1 is a perspective view of our sterilizer unit casing design with the cover component for the heating well in the closed position;

FIG. 2 is a front elevational view of the sterilizer unit casing of FIG. 1;

FIG. 3 is a top plan view of our sterilizer unit casing design;

FIG. 4 is a right end or side elevational view thereof;

FIG. 5 is a left end or side elevational view of our sterilizer unit casing; and

FIG. 6 is a perspective view of a modified embodiment of our casing design, wherein the cover is transparent and the heating well is visible therethrough. 

The ornamental design for a sterilizer unit casing, substantially as shown and described. 